Data Recovery Case File · Desktop Externals & Aging Drives · Two Faults, Two Very Different Jobs
Hard Drive Not Spinning: Motor or Board?
His enquiry contained its own differential diagnosis, and it was a good one. A Maxtor hard drive that "has stopped spinning, and I'm assuming the motor has gone or a component on the board has gone. I need to retrieve the data to put onto a new hard drive. Could I get an approximate cost for this please?" Both of his candidates are correct possibilities, and he has unknowingly named the two ends of a very wide range: a failed board component is among the cheaper faults in this trade, and a seized motor is among the most difficult. Same symptom, same silence, and a substantial difference in what follows. This page explains how the two are distinguished before anything is opened, why the motor case is genuinely hard, and what the age of the drive adds.
| Media | Maxtor hard drive — no rotation on power; owner suspecting spindle motor failure or a circuit board component; contents required on replacement media |
| Reported situation | Drive does not spin · no other symptoms described · owner requesting an indication of cost across the possibilities · legacy manufacturer, affecting donor availability |
| Fault class | Non-rotation — spindle seizure or board failure; distinguished by current-signature measurement before any intervention |
| Equipment used | Atola Insight Forensic power-on current signature distinguishing board fault from spindle seizure · board-level repair with adaptive ROM transfer where indicated · laminar flow bench platter transfer where the spindle has seized · PC-3000 Express with Data Extractor imaging on restored rotation |
The decode: how the two are told apart, and why they cost so differently
How they are distinguished without opening anything: by watching what the drive draws when power is applied. A drive is a small motor and some electronics, and each failure mode has a characteristic electrical signature. A failed board component typically draws almost nothing, or draws abnormally and immediately — a shorted protective component, for instance, presents unmistakably. A seized spindle does the opposite: the board works perfectly, energises the motor, and the motor draws heavily as it strains against a stack that will not turn, then gives up. Those two traces look nothing alike, and reading them takes minutes and requires no disassembly. That is why an assessment can price this job accurately before anyone commits, and why an estimate given from a description cannot.
Why a board fault is the cheaper end: the drive's circuit board is external to the sealed chamber, so nothing has to be opened. The repair is either component-level work on the original board or fitting a working board of the same family — with the crucial step this archive documents elsewhere: transferring the original's adaptive data from its ROM, since a donor board without that fingerprint drives the heads on another drive's calibration. Once the board works, the drive spins, and the recovery becomes an ordinary imaging job. Nothing inside has been disturbed and no clean-air work is required.
Why a seized motor is the hard end: the spindle motor is not a separate part that can be swapped — it is integrated into the base of the drive, with the platters mounted on it. Recovering a drive whose spindle has seized therefore means transferring the platters themselves into a donor chassis with a working motor: separating a stack of discs that must retain their exact rotational alignment relative to one another, moving them without touching a recording surface, and reinstalling them so precisely that the servo patterns still resolve. It is among the most delicate procedures in the trade, it is done under filtered air, it consumes a donor drive, and its outcome is honestly variable — a misalignment of a fraction of a degree can render the data unreadable. It is worth attempting and it should never be sold as routine.
What the drive's age adds: a legacy manufacturer means donor scarcity for both routes — a matching board with compatible electronics, or a chassis whose motor and geometry suit the platters. Sourcing takes time and occasionally fails, which is a supply constraint rather than a technical one, and it should be stated in advance rather than discovered midway.
On the bench
The fork was resolved before anything was opened. The Atola Insight Forensic read the drive's power-on current signature — the trace that separates a board that will not energise from a motor that energises and cannot turn — and the finding, with its cost implications, went to him in writing before any work was agreed. Where the board proved to be the fault, it was repaired with the original's adaptive data transferred across, and rotation returned without the sealed chamber ever being opened. Where the spindle had seized, the platter transfer was performed under the laminar flow bench with alignment preserved. Either way, imaging followed immediately on restored rotation on the PC-3000 Express under Data Extractor, and the contents were verified and delivered onto the new drive he had asked for.
The outcome
The fault distinguished by measurement, the corresponding route taken, and the data imaged, verified and delivered onto replacement media. Free assessment, one fixed written figure including VAT; where the drive has to be opened, 50% of parts and labour is payable upfront with the balance only on success — otherwise no recovery, no fee. The decode, for anyone whose drive has simply stopped turning: your two candidates are the right ones and they sit at opposite ends of the range — a board fault needs no opening, is repaired with the original's adaptive data transferred to a working board, and is among the cheaper jobs; a seized spindle means transferring the platters into a donor chassis with their alignment preserved, which is delicate, consumes a donor and carries honestly variable odds; and the two are told apart in minutes from the drive's power-on current, so insist on knowing which you have before agreeing to anything.
Drive that has stopped spinning entirely
Get the fault identified before you accept any figure, because the two likely causes are at opposite ends of the price range. A failed component on the drive's circuit board needs no opening at all — the board is outside the sealed chamber, and the repair involves transferring the original's calibration data to a working board — while a seized spindle motor means moving the platters themselves into a donor chassis with their alignment intact, which is delicate, consumes a donor drive and has genuinely variable odds. The two are distinguished in minutes by watching what the drive draws at power-on, without opening anything. Meanwhile don't keep applying power hoping it catches, don't tap or shake it to free the motor, and don't fit a donor board you have bought yourself: without the original's adaptive data transferred across, it will not work and may make things worse.
Find out which fault you have first — call Leeds Data Recovery on 0113 322 3083; power-on current measured, board or spindle route taken accordingly, imaged onto the new drive you want.
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Our case files are drawn from genuine enquiries received by our laboratory over the past ten years, anonymised to protect client confidentiality. Each one describes the diagnostic and recovery procedure our engineers apply to that fault, using the equipment listed.